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Run results for: querySelector vs querySelectorAll vs getElementsByClassName vs querySelector (ID) vs getElementsByID

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Run details:
Mozilla/5.0 (Linux; Android 9; Redmi Note 6 Pro) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.82 Mobile Safari/537.36
Chrome Mobile 93
Android
Mobile
10 months ago
Test name Executions per second
querySelector 785333.9 Ops/sec
querySelectorAll 406256.0 Ops/sec
getElementsByClassName 1036025.0 Ops/sec
querySelector (ID) 642407.3 Ops/sec
getElementsByID 1110972.0 Ops/sec
Website performance monitoring
HTML Preparation code:
Tests:

  • querySelector

  • querySelectorAll

  • getElementsByClassName

  • querySelector (ID)

  • getElementsByID